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From: Christoph Hellwig <hch@lst.de>
To: Kirti Wankhede <kwankhede@nvidia.com>,
	Tony Krowiak <akrowiak@linux.ibm.com>,
	Halil Pasic <pasic@linux.ibm.com>,
	Jason Herne <jjherne@linux.ibm.com>,
	Eric Farman <farman@linux.ibm.com>,
	Matthew Rosato <mjrosato@linux.ibm.com>,
	Zhenyu Wang <zhenyuw@linux.intel.com>,
	Zhi Wang <zhi.a.wang@intel.com>,
	Alex Williamson <alex.williamson@redhat.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>,
	kvm@vger.kernel.org, linux-s390@vger.kernel.org,
	intel-gvt-dev@lists.freedesktop.org,
	Kevin Tian <kevin.tian@intel.com>
Subject: [PATCH 01/15] drm/i915/gvt: fix a memory leak in intel_gvt_init_vgpu_types
Date: Wed,  6 Jul 2022 09:42:05 +0200	[thread overview]
Message-ID: <20220706074219.3614-2-hch@lst.de> (raw)
In-Reply-To: <20220706074219.3614-1-hch@lst.de>

gvt->types needs to be freed on error.

Fixes: c90d097ae144 ("drm/i915/gvt: define weight according to vGPU type")
Reported-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
---
 drivers/gpu/drm/i915/gvt/vgpu.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index 46da19b3225d2..5c828556cefd7 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -142,7 +142,7 @@ int intel_gvt_init_vgpu_types(struct intel_gvt *gvt)
 
 		if (vgpu_types[i].weight < 1 ||
 					vgpu_types[i].weight > VGPU_MAX_WEIGHT)
-			return -EINVAL;
+			goto out_free_types;
 
 		gvt->types[i].weight = vgpu_types[i].weight;
 		gvt->types[i].resolution = vgpu_types[i].edid;
@@ -167,6 +167,10 @@ int intel_gvt_init_vgpu_types(struct intel_gvt *gvt)
 
 	gvt->num_types = i;
 	return 0;
+
+out_free_types:
+	kfree(gvt->types);
+	return -EINVAL;
 }
 
 void intel_gvt_clean_vgpu_types(struct intel_gvt *gvt)
-- 
2.30.2


  reply	other threads:[~2022-07-06  7:42 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-06  7:42 simplify the mdev interface v5 Christoph Hellwig
2022-07-06  7:42 ` Christoph Hellwig [this message]
2022-07-06  7:42 ` [PATCH 02/15] drm/i915/gvt: simplify vgpu configuration management Christoph Hellwig
2022-07-07  2:18   ` Tian, Kevin
2022-07-06  7:42 ` [PATCH 03/15] vfio/mdev: make mdev.h standalone includable Christoph Hellwig
2022-07-06  7:42 ` [PATCH 04/15] vfio/mdev: embedd struct mdev_parent in the parent data structure Christoph Hellwig
2022-07-06 13:29   ` Kirti Wankhede
2022-07-07  3:08   ` Eric Farman
2022-07-07  7:22     ` Vineeth Vijayan
2022-07-07 13:40       ` Christoph Hellwig
2022-07-06  7:42 ` [PATCH 05/15] vfio/mdev: simplify mdev_type handling Christoph Hellwig
2022-07-06 13:31   ` Kirti Wankhede
2022-07-06  7:42 ` [PATCH 06/15] vfio/mdev: remove mdev_from_dev Christoph Hellwig
2022-07-06  7:42 ` [PATCH 07/15] vfio/mdev: unexport mdev_bus_type Christoph Hellwig
2022-07-06  7:42 ` [PATCH 08/15] vfio/mdev: remove mdev_parent_dev Christoph Hellwig
2022-07-06  7:42 ` [PATCH 09/15] vfio/mdev: remove mtype_get_parent_dev Christoph Hellwig
2022-07-06  7:42 ` [PATCH 10/15] vfio/mdev: consolidate all the device_api sysfs into the core code Christoph Hellwig
2022-07-06  7:42 ` [PATCH 11/15] vfio/mdev: consolidate all the name " Christoph Hellwig
2022-07-06  7:42 ` [PATCH 12/15] vfio/mdev: consolidate all the available_instance " Christoph Hellwig
2022-07-06  7:42 ` [PATCH 13/15] vfio/mdev: consolidate all the description " Christoph Hellwig
2022-07-06  7:42 ` [PATCH 14/15] vfio/mdev: add mdev available instance checking to the core Christoph Hellwig
2022-07-06 13:37   ` Kirti Wankhede
2022-07-07  3:08   ` Eric Farman
2022-07-08  5:48     ` Christoph Hellwig
2022-07-06  7:42 ` [PATCH 15/15] vfio/mdev: remove an extra parent kobject reference Christoph Hellwig
2022-07-06 13:48   ` Kirti Wankhede
2022-07-07 13:37     ` Christoph Hellwig
2022-07-06 14:38   ` Jason Gunthorpe
2022-07-07 13:40     ` Christoph Hellwig
2022-07-07 23:01       ` Alex Williamson
2022-07-07  2:19   ` Tian, Kevin

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